package guoanmaker.operator.helper.filter;

import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@Component
public class CORSFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
	}

	@Override
	public void doFilter(ServletRequest req, ServletResponse res,
                         FilterChain chain) throws IOException, ServletException {
		HttpServletResponse response = (HttpServletResponse) res;
		HttpServletRequest request = (HttpServletRequest) req;
		response.setHeader("Access-Control-Allow-Origin","*");
		response.setHeader("access-control-expose-headers", "Authorization");
		response.setHeader("Access-Control-Allow-Methods",
				"GET, POST, PUT, DELETE, OPTIONS");
//		response.setHeader("Access-Control-Max-Age", "3600");
		response.setHeader("Access-Control-Allow-Headers",
				"Content-Type, Access-Control-Allow-Headers, Authorization, X-Requested-With");
		chain.doFilter(request, response);
	}

	public void destroy() {
	}
}